Extending this timeout will prevent IH from storm interrupts coming from SDMA while a page fault is active. Currently, on Aldebaran, handling that many interrupts can take a lot of CPU time (up to 4 seconds). This eventually causes timeouts in other tasks. Signed-off-by: Alex Sierra <alex.sierra@xxxxxxx> --- drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c b/drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c index 5715be6770ec..823a367990bf 100644 --- a/drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c +++ b/drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c @@ -1109,6 +1109,8 @@ static void sdma_v4_0_ctx_switch_enable(struct amdgpu_device *adev, bool enable) if (adev->asic_type == CHIP_ARCTURUS && adev->sdma.instance[i].fw_version >= 14) WREG32_SDMA(i, mmSDMA0_PUB_DUMMY_REG2, enable); + /* Extend page fault timeout to avoid interrupt storm */ + WREG32_SDMA(i, mmSDMA0_UTCL1_TIMEOUT, 0x00800080); } } -- 2.17.1 _______________________________________________ amd-gfx mailing list amd-gfx@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/amd-gfx
